Mellanox QSFP112 Module — 400Gb/s SR4 QSFP112 Transceiver

Introducing the Mellanox QSFP112 Module, a high-performance transceiver engineered for the most demanding data-center networks. Built around NVIDIA’s MMA1Z00-NS400 architecture, this InfiniBand and Ethernet 400Gb/s single-port QSFP112 SR4 multimode parallel transceiver delivers blazing bandwidth in a compact, hot-pluggable form factor. Featuring a four-channel MPO-12/APC optical connector and 100G-PAM4 signaling, it enables dense, scalable interconnects across racks and clusters while maintaining low latency and robust reliability. The SR4 short-reach design is purpose-built for multimode fiber deployments, providing practical reach up to 50 meters to power modern high-performance compute and storage fabrics with confidence.

• High-bandwidth, single-port 400 Gb/s transceiver in the compact QSFP112 form factor, optimized for fiber-rich data-center fabrics and HPC environments that demand maximum throughput in a minimal footprint.
• Four parallel 100 Gb/s PAM4 lanes enabled by a 4-channel MPO-12/APC optical interface, delivering aggregated bandwidth while preserving channelized flexibility for parallel links and scalable architectures.
• MPO-12/APC multimode optical connector designed for reliable parallel fiber connections with APC polish, reducing insertion loss, improving return loss, and supporting efficient SR4 operation on multimode fiber.
• Reach up to 50 meters on multimode fiber for Short Reach (SR4) deployments, making it ideal for data-center topologies, rack-to-rack links, and HPC clusters where fiber runs stay within a single facility.
• InfiniBand and Ethernet compatibility—a versatile module suitable for converged fabrics and mixed-network environments, enabling seamless integration into modern data centers, storage networks, and high-performance computing deployments.

Technical Details of Mellanox QSFP112 Module

• Product family: QSFP112 SR4 transceiver for 400 Gb/s links
• Modulation: 100G-PAM4 signaling across four parallel lanes
• Configuration: Single-port QSFP112 module with four parallel channels
• Optical interface: MPO-12/APC connector for parallel multimode fiber
• Fiber type: Multimode (SR4) suitable for data-center short-range deployments
• Reach: Up to 50 meters on appropriate multimode fiber (OM3/OM4 recommendations apply)
• Application scope: InfiniBand and Ethernet fabrics, optimized for high-density data-center interconnects and HPC clusters
• Form factor and compatibility: Hot-pluggable QSFP112 module designed to fit standard QSFP cages in compatible chassis and switches
• Platform reference: NVIDIA MMA1Z00-NS400-based transceiver design, aligned with enterprise-grade data center networking standards

How to install Mellanox QSFP112 Module

Installing the Mellanox QSFP112 Module is designed to be straightforward in compatible switches, NICs, and optical chassis. Follow these general steps to ensure a safe, reliable deployment:

• Power down the chassis or ensure the system is in a safe state to handle hot-swappable components, and use proper ESD precautions.
• Carefully align the QSFP112 module with the enclosure’s QSFP cage, ensuring the module is oriented correctly for your device’s port mapping.
• Gently insert the module into the cage until you hear a click or feel it seat firmly; confirm a proper lock is engaged in the chassis.
• Connect the MPO-12/APC multimode fiber assembly to the transceiver’s optical port, ensuring correct fiber polarity and APC cleanliness to minimize loss.
• Route and secure the fiber cables to patch panels or switching equipment, verify link status in the management interface, and perform a basic connectivity test across the SR4 link.

Frequently asked questions

• What is the Mellanox QSFP112 Module? It is a 400 Gb/s SR4 transceiver in a QSFP112 form factor, designed for InfiniBand and Ethernet networks, delivering four parallel 100 Gb/s PAM4 lanes over a single module.
• What type of fiber does it use? It uses multimode fiber with an MPO-12/APC connector, optimized for Short Reach (SR4) deployments.
• What is the maximum reach? Up to 50 meters on suitable multimode fiber, depending on fiber grade (OM3/OM4) and installation conditions.
• Which networks is it suitable for? It is suitable for InfiniBand and Ethernet fabrics, making it a versatile choice for HPC clusters, data-center interconnects, and storage networks.
• Is it hot-pluggable? Yes. It is designed for hot-swappable installation into compatible switch ports, NICs, and optical backplanes, consistent with data-center convenience and uptime goals.
• How does the four-lane design benefit deployments? The four parallel 100 Gb/s lanes enable high-throughput interconnects, enabling scalable data paths while preserving a compact module footprint for dense spine-leaf or HPC fabrics.